History YMMV / AliensColonialMarines

* ContestedSequel: Despite the fact that the game is reportedly considered as canon by 20th Century Fox, fans rejected it for being slow, buggy and nowhere near the concept it was made out to be in early previews and demos. After all that's said and done, and the initial hatred died down, as well the highly received DLC and patches[[note]]most notably fixing the non-existent xenomorph AI[[/note]], the game still won its own fanbase, though some remain bitter towards the game regardless.

* NeverLiveItDown:
** People were using the NeverTrustATrailer mentality that this game brought about for the game's pseudo-sequel, ''VideoGame/AlienIsolation'' - even though ''Isolation'' actually has a playable demo and was made by a different studio. Likewise, criticism of Gearbox exploded after this game's release. Recall that ACM has worse reviews than ''Duke Nukem Forever.''
** In addition, the scandal around ACM would forever tarnish Gearbox and Randy Pitchford's reputations, which most certainly played a part in the poor performance of their next major game, ''{{VideoGame/Battleborn}}''.
** As if the game's reputation wasn't bad enough as is, it got even worse when it was discovered that a [[EpicFail 1-letter spelling error]] wrecked the game's AI - suffice to say Gearbox won't be hearing the end of ''this'' anytime soon.

* OlderThanTheyThink: While the fact that you fight human enemies was a major complaint about the game, human enemies have been part of almost every major ''Aliens'' fps game, including ''Alien Trilogy'', the Playstation ''Alien Resurrection'', and ''Aliens vs. Predator''. That said, ''Colonial Marines'' is likely the most extreme example, with about 40% of the combat in the game being against human opponents.

* UncannyValley: A number of the characters like Winters and Cruz, are noticeably bulky in bodily and facial proportions, almost in a slightly stylised way. Thus, when Bishop and [[spoiler:Hicks]], modelled after the actors who portrayed them, and thus with realistic proportions, show up and interact with them in the same scenes, something about it just looks ''off''.
** Furthermore, [[spoiler:Hicks]] has an odd waxy, glass-eyed look to him, which is doubly bizarre since Bishop looks just fine.

* CompleteMonster (includes ''[[{{DLC}} Stasis Interrupted]]''): [[AdaptationalVillainy Michael Bishop/Michael Weyland]] is the face of [[MegaCorp Weyland-Yutani Corporation]] and the mastermind behind their [[PlayingWithSyringes experiments]] on Xenomorphs in hopes of creating a perfect [[BioweaponBeast bioweapon]]. Ordering his subordinates to build a massive Origin Facility on Acheron LV-426 moon under very harsh and deadly conditions and capturing the Xenomorph Queen to produce facehuggers, Michael kidnapped hundreds of colonists for his experiments, turning them into the hosts for the Xenomorphs, which always resulted in their agonizing deaths. Capturing Corporal Dwayne Hicks, Bishop tortures him for information, and after Colonial Marines discover his atrocities, Michael ordered his troops to destroy their ship, resulting in over 300 of the Marines dying.

* MemeticMutation: "Press Backspace to Fix Videogame", after it became widely known in 2018 that the game's infamous ArtificialStupidity was partially the result of '''[[https://www.moddb.com/mods/templargfxs-acm-overhaul a single spelling error]]''' in the game's code wherein the word "tether" was misspelled as "[[RougeAnglesOfSatin teather]]".

* OlderThanTheyThink: While the fact that you fight human enemies was a major complaint about the game, human enemies have been part of almost every major ''Aliens'' fps game, including ''Alien Trilogy'', the Playstation ''Alien Resurrection'', and ''Aliens vs. Predator''.

* HarsherInHindsight: Hudson's cameo where [[spoiler:he's cocooned and had already been chestbursted]] could be this due to Creator/BillPaxton's death from heart surgery in February 2017.